Medically reviewed by Jonathan B. Jassey, DO Key Takeaways The Moro reflex is a startle response in babies that makes their arms extend and retract. Newborns grow out of the Moro reflex within the ...

To understand the expressive range of the human face, nothing beats watching a colleague scream his head off in slow motion. When my lab began to study protective reflexes in the early 2000s, the ...

I’ve been reading a lot recently about the startle reflex as it applies to folks who suffer with panic disorder and agoraphobia. As you probably suspected, people diagnosed with this wretched curse ...

The startle reflex is a rapid, involuntary response to sudden acoustic stimuli, and its study has provided valuable insights into the neural mechanisms underlying motor preparation. Research in this ...

The SR-LAB startle response system is the world's most popular startle reflex research tool for assessing fear-potentiated startle (FPS), pre-pulse inhibition (PPI), and startle habituation. SR-LAB ...

The acoustic startle response is an unconditional reflex manifested as a rapid contraction of facial and skeletal muscles in response to a sudden and intense startling stimulus. Translational research ...

University of Toronto researchers have discovered that the main purpose of the startle reflex -- the mechanism that makes people twitch at sudden loud noises -- is to protect the body against blows.

The startle response, often recorded as an eye-blink reflex, is a defensive measure believed to reflect emotional processing. Patients with alcohol use disorders (AUDs) show abnormal startle-reflex ...

We all jump at an unexpected noise or touch, but in some people, this startle response is exaggerated, and can cause falls and even death. Now, researchers in the United Kingdom have found new genes ...

Dear Dr. Roach: My question concerns a subject I’ve not seen addressed in your column. My essential tremor is accompanied by an exaggerated startle response. The least sound makes me jump. I take 10 ...